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1 de jul. de 2024 · The rare-earth elements (REE), also called the rare-earth metals or rare earths or, in context, rare-earth oxides, and sometimes the lanthanides (although scandium and yttrium, which do not belong to this series, are usually included as rare earths), are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals.
24 de jun. de 2024 · Learn about the 16 rare-earth elements, their discovery, history, and applications in modern technology. Find out why they are not so rare and where they are produced and refined.
12 de jun. de 2024 · The heart of an ancient volcano in Norway hosts Europe's largest deposit of rare earth elements, according to the mining company Rare Earths Norway.
24 de jun. de 2024 · Bastnasite, a fluorocarbonate, is the principal source of rare earths. About 94 percent of the rare earths used in the world come from mines in Mountain Pass, California, U.S.; Bayan Obo, Inner Mongolia, China; Shandong province, China; and Sichuan province, China.
24 de jun. de 2024 · Rare-earth element - Properties, Metals, Uses: As noted above, the rare-earth elements—especially the lanthanides—are quite similar. They occur together in nature, and their complete separations are difficult to achieve.
Há 6 dias · The rare earth elements are a group of transition metals, found mainly in the first row below the periodic table (the lanthanide series), plus scandium and yttrium. Despite the name, these elements are fairly abundant in the Earth’s crust.
Há 6 dias · Rare Earth proponents argue that a planetary system capable of sustaining complex life must be structured more or less like the Solar System, with small, rocky inner planets and massive outer gas giants.
